Acid-Base Indicators
Acid-Base Indicators: Overview
This Topic covers sub-topics such as Bases, Acids, Acids and Bases, Litmus, Olfactory Indicators, Acid-Base Indicators, Colour of Litmus in Neutral Solution, Effect of Acids and Bases on Olfactory Indicators and, Some Naturally Occuring Acids
Important Questions on Acid-Base Indicators
Why does olfactory indicators changes smell along with the substance?
Is ferric hydroxide a base or alkali?
Ammonia is a base but does not contain hydroxyl group
The yellow colour of turmeric changes to red on addition of soap solution. When substance P is added to turmeric, there is no change in colour.
Which of the following is definitely true about substance P?
What is the formula of the chemical present in lemon juice?
What is the formula of litmus paper?
An indicator is used to determine certain chemical properties of a substance.
What is the formula of citric acid?
Define olfactory indicators. Give two examples.
You are given the following solutions,
(i) salt solution (ii) soda water and (iii)shampoo solution
How will you identify if the solution is acidic, basic or neutral using red cabbage ?
Which of the following indicators is an olfactory indicator?
The sense of smell is detected by the _____ receptors.
The colour of methyl orange indicator in acidic medium is
Indigo Carmine is a pH indicator that changes from blue to yellow for bases.
Methyl orange as pH indicator turns to _____ colour for bases.
